Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-06-09
Phys. Rev. B 82, 155115 (2010)
Physics
Condensed Matter
Strongly Correlated Electrons
13 pages, 8 figures
Scientific paper
10.1103/PhysRevB.82.155115
We calculate the total electronic Raman scattering spectrum for a system with a charge density wave on an infinite-dimensional hypercubic lattice. The problem is solved exactly for the spinless Falicov-Kimball model with dynamical mean-field theory. We include the nonresonant, mixed, and resonant contributions in three common experimental polarizations, and analyze the response functions for representative values of the energy of the incident photons. The complicated scattering response can be understood from the significant temperature dependence of the many-body density of states, and includes a huge enhancement for photon frequencies near the charge-density-wave gap energy.
Freericks James K.
Matveev O. P.
Shvaika A. M.
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